85869353 has 2 divisors, whose sum is σ = 85869354. Its totient is φ = 85869352.

The previous prime is 85869283. The next prime is 85869361. The reversal of 85869353 is 35396858.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56145049 + 29724304 = 7493^2 + 5452^2 .

It is a cyclic number.

It is not a de Polignac number, because 85869353 - 2¹⁰ = 85868329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85869298 and 85869307.

It is not a weakly prime, because it can be changed into another prime (85869383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42934676 + 42934677.

It is an arithmetic number, because the mean of its divisors is an integer number (42934677).

Almost surely, 2^85869353 is an apocalyptic number.

It is an amenable number.

85869353 is a deficient number, since it is larger than the sum of its proper divisors (1).

85869353 is an equidigital number, since it uses as much as digits as its factorization.

85869353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 47.

The square root of 85869353 is about 9266.5718040708. The cubic root of 85869353 is about 441.1768649370.

The spelling of 85869353 in words is "eighty-five million, eight hundred sixty-nine thousand, three hundred fifty-three".